Tracking device



FIG. 1 is a top perspective view of a tracking device;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a front elevational view thereof; and,

FIG. 8 is a rear elevational view thereof.

The broken lines in the drawings showing portions of the tracking device are included for the purpose of illustrating environmental structure and form no part of the claimed design. 

CLAIM The ornamental design for a tracking device, as shown and described. 